单拱4车道公路隧道
single-arch four-lane highway tunnel
单拱四车道公路隧道
single arch tunnel with four lanes
双车道公路隧道
Double-lane highway tunnel
三车道隧道
Three-lane Highway Tunnel
农村单车道公路
Rural Single-lane Highway
山区双车道公路
Mountainous Two-lane Highway
Mountain Terrain Two-lane Highway
长江公路隧道
Yangtze River highway tunnel
超长公路隧道
Super long highway tunnel
城市道路隧道照明设计
Design of Urban Road Tunnel Lighting